Sunflower
SpeciesHelianthus annuus
Fact sheet
every fact quoted from its source“Sunflowers are annual plants, meaning one plant’s lifespan lasts less than one year.” — How long does it take for a sunflower to grow? – Home for the Harvest
“Seeds sprout within 7 to 10 days” — Sunflower - Helianthus annuus: Varieties, Care & Uses
“From Seed to Full Bloom in 60-90 Days” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“seeds planted in cold soil (below 55°F)” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“sunflowers need 6-8 hours of direct sun daily” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“Water regularly after planting until roots are established” — Sunflower - Helianthus annuus: Varieties, Care & Uses
“USDA recognizes Helianthus annuus as both a native wildflower and a major agricultural plant” — Sunflower - Helianthus annuus: Varieties, Care & Uses
“Space plants 12–24 inches apart” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“they hit 6-foot tall and burst into yellow just 75 days later” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“Start seeds indoors 2-3 weeks before your last frost, or direct-sow” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“Start seeds indoors 2-3 weeks before your last frost” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“or direct-sow after the soil warms” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“The payoff? Golden faces tracking the sun by late summer” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“For sunflowers grown for their edible seeds, particularly ones with large striped seeds preferred for roasting whole, the flower heads won’t be harvested until the back turns yellow-brown and the head begins to curl back on itself and droop.” — How long does it take for a sunflower to grow? – Home for the Harvest
“Pests like sunflower beetles or aphids” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
“Fungal diseases (e.g., downy mildew or rust)” — Sunflower Maturity Time: From Seed to Full Bloom in 60-90 Days
Who grows this
No grower lists Sunflower yet. Follow this card to hear when one does. Grow it yourself? Find your nursery and claim it.
Where this comes from
- Name and place in the family tree: GBIF Backbone Taxonomy (CC BY 4.0)
- Linked record: Wikidata (CC0)
- Wikipedia: Sunflower
- Fact sheet: 9 source pages, read and quoted by the OmniGrow Librarian